Operating procedures – Dwyer UFC User Manual

Page 28

3: Operating Procedures

Press the

Options key to access the FLOW

READING OPTION screen shown.

Scroll down and select

Calibration factor

then press

ENTER.

Change the calibration factor according to the
error calculated in step 3. For example, if the
instrument was reading 1% high then increase
the

Calibration factor value by 0.010.

Conversely, if the reading is 1% low then
decrease the calibration factor to 0.990.

Press

ENTER to apply the change.

Select

Roughness factor or Exit as

required and press

ENTER.

FLOW READING OPTION DD-MM-YY HH:MM:SS

Data review

Zero Cutoff (m/s) : 0.010

Set zero flow (m/s) : 0.000

Damping (secs) : 10

Totalizer : Run

Reset +Total

Reset –Total

Calibration factor : 1.000

Roughness factor : 0.010

Alarm Settings :

Max Pulse Freq (Hz) : 10.00

Flow at Max Frequency : 200.00

Calculated Pulse Value: 2.00

Diagnostics

Select Totals : +Total

Exit